Here's a clear, step-by-step guide on Twitter Ads 2024: How to Target Custom Audiences to help you get precise with your ad targeting:

Twitter Ads 2024: How to Target Custom Audiences
1. What Are Custom Audiences?
Custom Audiences let you target ads to people who already have some connection to your brand—like website visitors, email subscribers, or past customers—making your campaigns more effective and relevant.

2. Create Your Custom Audience Types
a. Website Activity
Install Twitter's Universal Website Tag on your site.

Track visitors based on actions: page views, sign-ups, purchases.

Segment visitors for retargeting (e.g., cart abandoners).

b. Mobile App Activity
Connect your app to Twitter Ads Manager.

Target users based on in-app actions (installs, purchases).

c. List Uploads
Upload your customer email lists or phone numbers.

Twitter matches this data to user accounts to create a precise audience.

d. Engagement Audiences
Target users who interacted with your Tweets, profile, or videos.

Great for retargeting warm prospects.

3. Steps to Create a Custom Audience
Go to Twitter Ads Manager > Tools > Audience Manager.

Click Create new audience and choose your audience type.

Upload data or set your website/app event rules.

Name your audience and save.

4. Use Custom Audiences in Campaigns
When creating a campaign, in the Audience section, select your saved Custom Audience.

Combine with additional targeting (demographics, interests) for laser focus.

5. Tips for Maximizing Custom Audience Performance
Refresh your uploaded lists regularly (e.g., monthly).

Use lookalike audiences (called "Tailored Audiences" on Twitter) to reach new but similar users.

Exclude current customers from prospecting campaigns to avoid wasted spend.

Combine retargeting with special offers or personalized creatives.

6. Compliance & Privacy
Always ensure your customer data complies with Twitter's policies and privacy regulations.

Inform your users if you're tracking website/app activity.

Bonus: Example Use Case
Say you run an online fashion store:

Retarget visitors who viewed product pages but didn't buy.

Upload your newsletter list for exclusive sale ads.

Create lookalikes to find new shoppers similar to your best customers.